Recorder



July 13, 1926.

F. W. SHARKEY RECORIT'ER 1 Filed Jan.

10, 1924 3 Sheets-Sheet 1 July 13,1926. 1,592,783

' F. w. SHARKEY RECORDER Filed Jan. 10, 1924 3 Sheeta-Sheet 2 July 13 1926.

F. W. SHARKEY RECORDER Filed Jan. 10 1924 5 Sheets-Sheet 5 thru means conneotedtherewith are following Patented July 13, 1926.

UNITED STA manners w. SHARKEY, or NEW YORK, N. Y.

RECORDER.

Application filed January 10, 1924. Serial No. 685,385.. 2

This invention relates to improvements in recorders.

An important object of this invention is to provide a device of the above mentioned character which is adapted to be connected to or used with any type of radio or telegraphic code receivers now in use.

Another important object of this invention is to provide a device of the above mentioned character, whereby sound waves which are transmitted through the ether are picked up by radio receiving apparatus and caused to record themselves on means provided for that purpose thereby providing a permanent record of the signals received.

Another important object of this invention is to provide a recorder of" the above mentioned type which is provided with means whereby it may be either manually or automatically controlled and operated.

A further important feature ofthis invention is the provision of adjustable means whereby the faintest signals which may be heard are caused to register with as much accuracy as a strong or loud signal.

A still further object of this invention is to provide a device of the above mentioned character which may be manufactured at a reasonable cost, of few parts, sturdy in construction and positive in operation.

Other objects and advantages will readily become apparent during the-course of the description, in which- Figure 1 is a side elevation of my device, with electrical connections and special adjusting means shown diagrammatically,

Figure 2 is a plan view of the same with the exception of the diagrammaticalportion, 7

Figure 3 is a sideelevation of a slight. modification of Fig. 1,

Figure 4 is a plan view of the same, with the paper andcarbon cloth not shown,

Figure 5 is a diagrammatical view of an automatical control mechanism adapted to be used in connection with Fig. 1, p I.

Figure 6 is an enlarged side elevation, partly in section. of the tape markingmechanismas shown in Fig. 1, 1

Figure 7 is an enlarged end elevation of the carbon. cloth reel,

Figure 8 is-an enlarged end elevation of carbon paper receiving reel and friction drive therefor,

20. The paper Figure 9 is an enlarged end elevation of the motor and friction reels associated there-' with,

Figure 10 is an enlarged longitudinal sectional view, and end elevation of the same, ofthe guide plate shown in Fig. 2, and

Figure 11 is an enlarged cross-sectional view, and longitudinal cross-section of the same, taken on the line II-TI of Fig. 2.

Referring to the drawings, wherein like reference characters designate like parts throughout the several views, and in paw ticular to Figs. 1 and 2 wherein is shown a preferred form of my invention, the numeral 12 designates a base member, to which is secured at one endbrackets 13, which have rotatably mounted thereon a spool 1 adapted to receive a roll of paper 15.

Mounted on the. same end of the. base member 12 are superposed paper guidemembers 16 and 17 having longitudinal depressions 18 formed in their meeting faces as clearly shown in Fig. 11. The base mem- .ber 12 has also mounted'thereon by means of a bracket 19, a carbon cloth receiving spoo strip 15 and carbon cloth 21 are then passed through a second set of superposed guide members 22 and 23 which are secured to the base member 12 in any well known manner, said members having apertures 24 and 25 formed therein. The said guide members 22 and 23 also have formed in their meeting faces longitudinal depressions26 as shown in Fig. 10, thereby forming guide chambers for the paper strip 15 and carbon cloth 21.

Mounted in the guide plate 22 as clearly shown in Fig. 6, is a rotatable shaft 27 screw threaded throughout a portion of its length as at 28. Mounted in the aperture 24; and on the shaft. 27 is a block 29 which has formed on its under surface a tit 30, the purpose of which will be more fully hereinafter described.

Secured to the underside of the base member .12 is a bracket 31 on which are mounted a spring arm 34 carrying a block 35, said spring arm 34.- being adapted to overlie the magnets 32 for a purpose that will be more fully hereinafter pointed out.

The base member also has suitably mounted thereon a motor 36 having a shaft'37 which is suitably journaled in two brackets magnets 32,

38-, said bracket-s carrying friction rollers 39, 40 and 41 as clearly shown in 9. Geared to the motor 36 by a flexible belt 42 is a carbon cloth receiving spool 43 which is sultably journaled on a shaft 44, having a disk 44 on one end thereof, which is mounted on a bracket 45 secured to the base member 12. The belt 42 is ada ted to be passed about a collar 43 whichis rotatably mounted on the shaft 44. Mounted between the disks 44' and the collar 46 is a coiled expansion spring 4'? which is adapted topressthe collar 46 into frictional conncction'with the spool43 thereby forming a driving connection between the two. The motor is adapted to be regulated by a suitable rheostat such as shown at 48.

The'numeral 49 designates a loud speaker used in connection with radio receiving apparatus of the present day, having the usual movable coil 50 attached to the diaphragm 51. The numeral 52 indicates a metal cover, preferably of brass, which is attached to the neck 53 or the loud speaker49, and carries a binding post 54. Carried by the cover 52 is an insulating bushing 55 in which is mounted a screw-threaded adjustable contact screw 56 which has mounted on the upper end thereof a binding post 57. 7

Any suitable wiring may be employed for connecting the loud speaker 49 V, with the such as shown at 58 and 59, said circuit employing the usual battery 60 for energizing the said magnets. There is employed in the circuit 58'and 59, a two way switch 61 adapted to connect with contacts 62 and 63. As shown in Fig. l the rheostat 48 isshunted across the circuit 58 and 59 as at 64 and (35. It is to be understood that the rheostat 48 and the motor 36 are suitably connected together as by binding posts 66 mounted on the base member 12.

Connected in parallel with the circuit'58 and 59 as shown at 67, and 68 is a Baldwin Type C phone or relay designated generally by the letter A which includes the usual coil 69 having a core 70 connected to the diaphragm 71 at 72. Secured to the core 70 is an arm 73, made of any suitable conducting material, which is pivotally connected to a standard 74 as at 75. The arm 73 is connected through the standard 74 as at 76 to the wire 68. Secured to one end oi the arm 7 3 is a contact member 77 adapted to contact with a contact 78 carried by an adjustable screw 79 which is mounted in a binding post 80, the said binding post 80 being electrically connected to the wire 67 as at 81. V j v r Referring to Fig. 3, in which is shown a slight modification there is provided the base member 12 to which is secured the brackets 13 carrying the spool 14 adapted to receive a roll of paper 15; Mounted on the brackets 13 is the carbon cloth roll 20" adapted to receive a roll of carbon cloth 21. The carbon cloth 21 and the paper 15' are fed'through guide plates 16 and 17, and 22 and 23 respectively. Secured to the base 12 in any well known manner is a coil 32' having a core 33. The core 33' is adapted, upon being energized, to attract a spring arm 34, one end of which carries a blunt pin 35 which is adapted to strike the vcarbon cioth 21 and paper 15 asit passes in connection with 1, 60 is the battery, one side or" which is connected to the rheostat 48 and the other side to the contact 82. One side of the rheostat is con nected to one motor terminal 66 and the remaining terminal 66 of the motor to the contact 85. Mounted on the block 35 is a circuit closing switch member 86 adapted to bridge the space between the contacts 82 and 85 and thereby complete the circuit through the motor terminals for a purpose which will be more fully rhereii'iatter pointed out. I r The operation is as follows U on paper and carbon cloth being fed through the guide plates and throughthe friction rolls, the carbon cloth is received on the roll 43. Any suitable means maybe used to receive the paper strip as itisfed out of the friction rolls. Upon the desired signal being received on the loud speaker 49, the rheostat is first adjustedto give the proper speed to the motor 36, which through its friction drive, will draw thepaper and carbon cloth through the guide plates. The switch 61 is then thrown over on contact 62 which completes the circuit through the magnets 32 and thereby causing them to become energized and therefore draw the spring arm 34 down which will automatically draw the block 35 away from the paper strip 15 and carbon cloth 21, r is the signals are received through the loud speaker the diaphragm 51 will make, and break the circuit through the wires 58 and 59 therebycausing the block 35 to be sprung into engagement with the paper 15 and carbon cloth 21 for a short or long space or time, as a short time for a dot and long and carbon cloth 21 are 7 time for a dashf Thus it will be seen that A when the block 35 is released it will spring up and press the paper and carbon cloth againstthe tit 30 carried by the adjustable block 29. The pressure of the tit 30 against the carbon cloth will cause a mark to be made on the paper strip indicating'the dots and dashes received. Thus a person who could not read code as it was sent would be able to translate the signal from the tape in his leisure time with the aid of a code book.

It will also be seen that by having the block 2-9 adjustable the same strip or paper may be used any number of times for signal messages. After the paper has been used once it can be rewound on the spool 14 and the block moved a fraction of an inch either way and when fed through the recorder again the second message will be recorded at one side of the previous message.

If a signal were too weak to be received on the loud speaker, or in other words too weak to energize the coil 50 enough to draw down the diaphragm 51 to break the circuit, the switch 61 could be thrown over on contact 63 thereby cutting in circuit 67 and 68 which is capable of much finer adjustment of the contact screw 79. It will be seen that a very slight movement of the diaphragm 71 will produce a much larger movement of the contact 77 thereby providing very fine adjustments for weak signals.

It is also to be understood that the motor 86 may have a suitable train of gearing connected therewith for driving the friction rollers and receiving roll 43 instead of the friction driving means as shown; or, a clock work mechanism might be also substituted for the motor itself if so desired.

The operation of the attachment shown in Fig. 5, is for the purpose of automatically starting the motor just in advance of a signal being received so that if a signal should be received while a person was not attending the recorder and had the motor cut off, with this attachment, each time the block 35 was released and allowed to spring up the motor would automatically start and thereby cause a feeding through the guide plates of the paper 15 and carbon cloth 21.

It is believed from the foregoing that the operation of Figs. 3 and 4 will be readily understood and that further detailed description is unnecessary. It is to be understood that while I have shown and described my invention as applied to radio telegraphy it is not limited to that use, but might also be used for the reception of various types of signals. Various changes may also be made in the shape, size, and arrangement of parts without departing from the spirit of my invention or the scope of the subjoined claims.

Having thus described the invention, I claim 1. In a recorder, a recorder strip, a carbon cloth strip, guide plates for said recorder strip and carbon cloth strip, a stylus associated with said recorder strip and carbon cloth strip, a set of magnets associated with said recorder, a spring arm overlying said magnets andadapted to intermittently engage said carbon cloth strip and recorder strip against said stylus and means for intermittently energizing said magnets.

2. In a recorder, a recorder strip, a carbon cloth strip, guide plates for said recorder strip and carbon cloth strip, an adjustable stylus carried by said guide plates and adapted to be engaged with said recorder strip and carbon cloth strip, a set of magnets associated with said recorder, a spring arm overlying said magnets and adapted to intermittently engage said carbon cloth strip and recorder strip against said stylus and means for intermittently energizing said magnets.

3. In a recorder, a stylus, a recorder strip, a carbon cloth strip interposed between the recorder strip and the stylus, means for feeding the recorder and carbon cloth strip past the stylus, means for causing the stylus and carbon cloth strip to engage for making a record upon the recorder strip, a member adapted to be moved by radio current impulses, and means controlled by the movement of said member for actuating the last mentioned means.

4. In a recorder, a stylus, a recorder strip, a carbon cloth strip interposed between the recorder strip and the stylus, means for feeding the recorder and carbon cloth strip past the stylus, mechanism for adjusting said stylus transversely of the recorder and carbon cloth strips, a member adapted to be moved by radio current impulses, and means controlled by the movement of said member for actuating the last mentioned means.

5. In a recorder, a stylus, a recorder strip, a carbon cloth strip interposed between the recorder strip and the stylus, magnets for causing the stylus and carbon cloth strip to engage for making a record upon the recorder strip, a circuit for said magnet, circuit making and breaking means in the circuit, a diaphragm mechanically connected to the circuit making and breaking means for operating the same, and electro-magnetic means energized by radio current impulses for flexing said diaphragm to actuate said circuit making and breaking means.

In testimony whereof I afiix my signature.

FRANCIS w. SHARKEY. 

